I’m running a dynamo & wired lights on my “do-everything” bike. I love the versatility and ease of always having great lights ready to go, but I don’t really like the look of exposed wiring on my bike. I wanted to mount my rear light up high but also route the wires elegantly out to the light. My buddy Adem very cleverly uses adhesive-backed Di2 cable covers to keep his dynamo wires tidy along his tubes, but I still needed to get the wires from the seat tube out to where the light is mounted.
I decided to design and print a sculpted cable guide to keep everything tidy. It took me about 19 revs to get the fit juuuust right - the later revisions were tiny changes for the most part! I printed the part at 50 μm layer heights on my Prusa MK3S (FDM). Even though FDM is a layer-based technology, 50 μm layers are super hard to notice, especially in this delicious jade filament! At some point I may want to reprint this in a more UV-stable material, but it doesn’t really experience load and it’s holding up well so far.